Experimental Study on Discrete Element Simulation of Powder Injection Molding
LIU Yu1,2, LI Yi-min1, XIA Qing-kun2, HE Hao1, HU You-hua1
1. State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China;
2. Department of Mechanical Engineering, Changsha University, Changsha 410022, China
Abstract：The discrete element granular model on powder injection molding was established. Powder was treated as granular model according with Newton Law and interaction each other rather than continuous phase, and viscous liquid bridge was simulated by parallel bonding model. Wax-based binder and 17-4ph stainless steel powder were mixed and injection molded, so the standard tensile samples and bending samples were obtained. The uniaxial tension and three-point bending tests were carried on. The results of tests and discrete element simulation were compared and analyzed. The results show that the crack morphology, position, force-displacement curves are consistent. The reliability of discrete element is verified and the micro parameters of discrete element granular model are checked.
刘煜, 李益民, 夏卿坤, 何浩, 胡幼华. 粉末注射成形的离散元模拟实验研究[J]. 材料工程, 2014, 0(4): 85-88.
LIU Yu, LI Yi-min, XIA Qing-kun, HE Hao, HU You-hua. Experimental Study on Discrete Element Simulation of Powder Injection Molding. Journal of Materials Engineering, 2014, 0(4): 85-88.
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2014, Vol. 0 
